Descriptive Statistics Flashcards
def inferential stats
concerned with pops and use sample data to make an inference abt a pop
def descriptive statistics
stats that organize abd summarize numerical data gathred from samples
descriptive statistics allow the researcher to….
examine the char, behaviors, and experiences of study participants
categorizing descriptive stats
measures to condense data
measures of central tendency
measures of variability
measures of r/ships
def measures to condense data
stats used to summarize and condense data
what are the various waya to condense or summarize data?
freq distributions
graphic presentations
percentages
freq distrubutions are appropriate for which kind of data
nominal
ordinal
interval
ratio
def freq distribution
all values/scores are listed and the number of times each one appears is recorded
highest to lowest or vice versa
methods of freq distributions
slash method
class intervals
skews
symmetrical distributions
both halves of the distribution are the same
def non symmetrical distribution
aka skewed
def positively skewed
tail points to the right
negatively skewed
tail points to the left
def normal distribution
a symmetrical distribution that has one central peak or set of values in the middle of the distribution
def normal curve
a bel shaped curve that graphically presents a normal distribution
aka Gaussian curve
